Abstract
At present, regional integrated energy system is considered as a novel form to improve the comprehensive energy efficiency and economy of the system by integrating multiple energy subsystems. The key link of integrated energy system planning and optimization is to determine the kind and installed capacity of source-side equipment, and how to make the equipment of the system cooperate and couple with each other. A model of equipment capacity allocation at the source side of integrated energy system is proposed, which can get the best equipment kind and installed capacity in the planning and optimization area. The objectives of the model are the optimal economy and the minimum carbon emission. In order to verify the effectiveness of the model proposed in this paper, three typical scenarios are set for comparative analysis. In the simulation, by comparing the economy and carbon emission of planning results in different scenarios, it can be found that there is a potential connection between the installed capacity of source-side equipment, and at the same time, the carbon emission will also affect the installed capacity of equipment. Renewable energy equipment has made great contribution to carbon emission, but its investment cost has greatly increased the system planning cost. Therefore, system economy and carbon emission are mutually exclusive to a certain extent.
Highlights
Because of the scarcity and non-renewable nature of energy resources, which is related to the development of the country and the improvement of the national economic level, we need to improve the utilization efficiency of energy and the coupling and complementarity of multiple energy sources. [1]
This paper considers the cost of excessive carbon emissions, and gas has a certain impact on the system economy
This paper found that CCHP units can significantly improve the economy and comprehensive energy efficiency of the system, but it will play a serious negative role in the carbon emission target
Summary
Because of the scarcity and non-renewable nature of energy resources, which is related to the development of the country and the improvement of the national economic level, we need to improve the utilization efficiency of energy and the coupling and complementarity of multiple energy sources. [1]. Because of the scarcity and non-renewable nature of energy resources, which is related to the development of the country and the improvement of the national economic level, we need to improve the utilization efficiency of energy and the coupling and complementarity of multiple energy sources. Literature [6] puts forward a network enhancement model based on threelevel robust optimization, which can reduce the possibility of reducing economy and environmental protection in the worst case. Literature [8] introduces the calculation method of carbon emission and puts forward the trading model of carbon emission rights. Literature [9] puts forward a multi-objective programming optimization model, and analyzes the sensitivity of the comprehensive energy efficiency, economy and carbon emission of the system to the model. Due to the importance of carbon emissions in the energy field, carbon emissions trading has become the future object of electricity market trading
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